Black tourmaline (schorl )is the most common variety . but there are also other varieties , such as the blue (indicolite ) , red (rubellite ), green , brown , and white . the red and green varieties when tranparent are valued as jewels . the green tourmalin has been increasing in popularity in recent years
Multi – colored and bi- colored tourmaline crystals are fairly common. Crystals may be green at one end pink at the other , or green on the outside and pink inside : this type is called watermelon tourmaline some forms of tourmaline are dichroic , which menas that when thy are viewed from different directions , they change color .
According to an old Egyption legend the tourmaline , on its long journey from the center of the Earth , passed over a rainbow . That is what gave this stone its variety of colors.
Tourmaline is the gemstone of love and friendship . it is said to render them firm and long -lasting.<
Tourmaline is found almost all over the world . there have been finds in Tanzania , Mozambique, Zimbabwe , Nigeria , Brazil , Madagascar, Sri Lanka , kenya, Afghanistan , Pakitsna , and South and South -west Africa.California and Maine in the United States are aslso sources for tourmaline.